Telescopic Gangway
Advantages of the Telescopic Gangway
1. Simple and cost effective
2. High reliability with a simple hydraulic system
3. Lightweight, fast, low cost
4. Minimal power consumption thanks to an integral HPU
5. Passive operation ensures fail safe compensation of motions during transfers
6. Automatic lift system protects gangway and target structure
7. Gangway operated by minimal crew
Overview
The telescopic gangway is a slewing type marine gangway used to transfer offshore personnel between adjacent offshore units. This access gangway can also be used to transfer lines for fuel, mud, electricity, water and other utilities.
The telescopic gangway is manually deployed and lands on the target structure via simple controls. Once landed, the telescopic transfer mechanisms are free to extend, retract, incline and slew. Combined with a dampened gangway tip support, the mechanisms compensate for all six degrees of freedom between the vessel and target structure. This passive compensation of motions provides access in high sea conditions with virtually no power consumption during operation.
Should vessel motions cause the gangway extension to exceed allowable limits, an automatic lift off system prevents damage to the telescopic gangway or target structure/vessel.
A traffic light guidance system ensures that personnel will only transfer when gangway parameters such as extension and inclination angles meet preset allowable limits.
| Model | | | | |
| Max Length | 25.0m | 30.0m | 42.5m | 45.5m |
| Operational Length | 21.5m | 25.0m | 36.5m | 38.0m |
| Min Length | 18.0m | 20.0m | 30.5m | 30.5m |
| Stroke | ±3.5m | ±5.0m | ±6.0m | ±7.5m |
| Free Width of Gangway | 1.2m | |||
| Free Height of Gangway | 2.1m | |||
| Gangway Inclination Angle | Nominal Working Range +24°to -16.5° | |||
| Slew/Rotation Angle | 360° | |||
| Power | Integral HPU | |||
| Illumination | Gangway, cabin and access platforms are illuminated for night operations | |||
| Control System | Joysticks for manual control of gangway position during landing and lifting off | |||
| Operator Controls | Gangway inclination angle Slew angle Gangway extension | |||
| Operator Warnings & Personnel Guidance | Traffic light warnings when gangway position approaches or exceeds operational limits | |||
| Emergency Lift Off | Emergency lift off system during power loss or high vessel motions | |||
| Transfer Lines | Option: Lines for compressed air, water, power, fuel and bilge water | |||
